Transparent display device
a display device and transparent technology, applied in the direction of semiconductor devices, basic electric elements, electrical equipment, etc., can solve the problems of diffraction image unwilling appearance, destructive interference, and construction interference or destructive interferen
Inactive Publication Date: 2017-06-22
SAMSUNG DISPLAY CO LTD
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Benefits of technology
The patent describes a transparent display device that includes a substrate, a pixel circuit, an insulation structure, a first electrode, a display layer, a second electrode, and an anti-diffraction layer. The anti-diffraction layer includes nano wires that are randomly arranged in a network structure and may be made of metal. The nano wires may have a maximum spacing of about 100nm to about 500nm. The anti-diffraction layer may be disposed on the substrate or on the display layer. The device may also include a pixel defining layer and a second electrode that overlaps the transmission area. The anti-diffraction layer may be sequentially stacked on the insulation structure or on the second electrode. The device may also include a capping layer, a packed layer, and an encapsulation substrate. The technical effects of the invention include improved image quality, reduced power consumption, and improved durability.
Problems solved by technology
Light output form the transparent display device is diffracted, resulting in constructive interference or destructive interference occurs.
Thus, a diffraction image unwillingly appears.
Method used
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[0044]Exemplary embodiments will be described more fully hereinafter with reference to the accompanying drawings, in which various embodiments are shown.
[0045]FIG. 1 is a plan view of a transparent display device according to example embodiments. FIG. 2 is an enlarged plan view illustrating an example of a display area of the transparent display device of FIG. 1. FIG. 3 is a cross-sectional view taken along section lines I-I′ of FIG. 2.
[0046]Referring to FIGS. 1 through 3, the transparent display device may include a plurality of display areas DA. The display areas DA may be parallel to a substrate 100. The display areas DA may be arranged in a first direction D1 and a second direction D2 orthogonal to the first direction Dl.
[0047]Each of the display areas DA may include a pixel area PA and a transmission area TA. A plurality of pixels in the pixel area PA, e.g., may be arranged adjacent in the first direction D1. For example, the pixel area PA may include a red pixel Pr, a green pi...
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A transparent display device according to example embodiments includes a substrate having a pixel area and a transmission area, a pixel circuit on the pixel area of the substrate, an insulation structure on the substrate to cover the pixel circuit, a first electrode on the pixel area of the substrate, the first electrode being at least partially penetrated the insulation structure and electrically connected to the pixel circuit, a display layer on the first electrode, a second electrode facing the first electrode and covering the display layer, and an anti-diffraction layer on the substrate, the anti-diffraction layer at least partially overlapping the transmission area and including a plurality of nano wires.
Description
CROSS REFERENCE TO RELATED APPLICATION[0001]Korean Patent Application No. 10-2015-0182545, filed on Dec. 21, 2015, in the Korean Intellectual Property Office, and entitled: “Transparent Display Device,” is incorporated by reference herein in its entirety.BACKGROUND[0002]1. Field[0003]Example embodiments relate to transparent display devices. More particularly, example embodiments relate to transparent display devices having a pixel area and a transmission area.[0004]2. Description of the Related Art[0005]Recently, a display device having transparent or transmitting properties has been developed. For implementing the transparent display device, the transparent display device includes a pixel area and a transmission area. Light output form the transparent display device is diffracted, resulting in constructive interference or destructive interference occurs. Thus, a diffraction image unwillingly appears. Accordingly, optical properties of the display decreases and definition of the im...
Claims
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IPC IPC(8): H01L51/52H01L27/32
CPCH01L51/5293H01L51/5237H01L27/3262H01L27/3246H10K59/121H10K59/1201H10K59/8793H10K59/87H10K59/877H10K59/80524H10K50/868H10K50/84H10K50/828H10K50/854H10K59/122H10K59/1213
Inventor LEE, SEUNG-MINKIM, TAE-HYUNLEE, JUNG-KYUPARK, SANG-HOYOON, JOO-SUN
Owner SAMSUNG DISPLAY CO LTD